Oakley Transition Brushed Chrome RH arm to replace snapped one

My one year old boy just broke the arm on my Transistors and it seems the great Oakley customer services doesn't extend to their prescription eyewear especialy not when they're discontinuing the model, so I'm after a RH arm for a pair of 22-149 Brushed Chrome Transistors.

Someone out there must have snapped the other one and now has a useless monacle they'd not be averse to selling.

Also if this isn't the place to look could anyone tell me where is? Is there an Oakley forum?